KL is the abbreviation for'KLEMME'which is the German term for connector / connection.
KL15 is ignition switch position #2 (on)
KL30 is battery positive, hot at all times KL31 is battery negative, connected all the time KL50 is ignition position #3 (start) KLR means ignition switch position #1 (accessory) KL30和KL31 简单来说,就是汽车电池的正负极。
lock
acc
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Start
Kl30
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Klr
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Kl15
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汽车电源的ACC模式 radio 档,启动功能,收音机, 汽车的Run 模式 启动功能,空调,升降车窗 汽车的Crank 模式 点火档